1i3n: Difference between revisions

<table><tr><td colspan='2'>[[1i3n]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1I3N OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1I3N FirstGlance]. <br>

</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=NAD:NICOTINAMIDE-ADENINE-DINUCLEOTIDE'>NAD</scene>, <scene name='pdbligand=UD1:URIDINE-DIPHOSPHATE-N-ACETYLGLUCOSAMINE'>UD1</scene></td></tr>

<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1i3k|1i3k]], [[1i3l|1i3l]], [[1i3m|1i3m]]</td></tr>

<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/UDP-glucose_4-epimerase UDP-glucose 4-epimerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=5.1.3.2 5.1.3.2] </span></td></tr>

<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1i3n FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1i3n OCA], [http://pdbe.org/1i3n PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1i3n RCSB], [http://www.ebi.ac.uk/pdbsum/1i3n PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1i3n ProSAT]</span></td></tr>

[[http://www.uniprot.org/uniprot/GALE_HUMAN GALE_HUMAN]] Defects in GALE are the cause of epimerase-deficiency galactosemia (EDG) [MIM:[http://omim.org/entry/230350 230350]]; also known as galactosemia type 3. Clinical features include early-onset cataracts, liver damage, deafness and mental retardation. There are two clinically distinct forms of EDG. (1) A benign, or 'peripheral' form with no detectable GALE activity in red blood cells and characterized by mild symptoms. Some patients may suffer no symptoms beyond raised levels of galactose-1-phosphate in the blood. (2) A much rarer 'generalized' form with undetectable levels of GALE activity in all tissues and resulting in severe features such as restricted growth and mental development.<ref>PMID:16302980</ref> <ref>PMID:9538513</ref> <ref>PMID:11279193</ref> <ref>PMID:9326324</ref> <ref>PMID:9973283</ref> <ref>PMID:11903335</ref> <ref>PMID:16301867</ref> <ref>PMID:15639193</ref>   

[[http://www.uniprot.org/uniprot/GALE_HUMAN GALE_HUMAN]] Catalyzes two distinct but analogous reactions: the epimerization of UDP-glucose to UDP-galactose and the epimerization of UDP-N-acetylglucosamine to UDP-N-acetylgalactosamine.